Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
21923 (1999 VT52)
Classification: Main-belt Asteroid          SPK-ID: 2021923
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1369668575183912 1.9097e-08  
a 2.648201371485158 1.0101e-08 au
q 2.285485551556942 4.9884e-08 au
i 14.53180935562734 3.4579e-07 deg
node 77.8850978131558 9.1062e-07 deg
peri 199.6960026213131 9.2585e-06 deg
M 152.7193997253636 7.7365e-06 deg
tp 2458728.745776348731
(2019-Sep-02.24577635)		 3.2509e-05 TDB
period 1574.073241164873
4.31		 9.0058e-06
2.466e-08		 d
yr
n .2287060033709654 1.3085e-09 deg/d
Q 3.010917191413374 1.1484e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2406  
   data-arc span      10153 days (27.80 yr)  
   first obs. used      1993-05-20  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42121  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:37:43  

Additional Information
 Earth MOID = 1.27389 au 
 Jupiter MOID = 2.10099 au 
 T_jup = 3.333 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.79   n/a E2021B10  
diameter diameter 8.366 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.208   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

21923 (1999 VT52)          Discovered 1999-Nov-03 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-01 05:39 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin